/**
 * Evolution API Panel - Design System
 * 
 * Atomic design tokens and component styles.
 * Colors: Black #000000, White #FFFFFF, Accent #00FFD5
 */

/* =============================================================================
   DESIGN TOKENS
   ============================================================================= */

:root {
    /* Colors */
    --color-bg-primary: #000000;
    --color-bg-secondary: #0a0a0a;
    --color-bg-tertiary: #111111;
    --color-bg-card: #161616;
    --color-bg-hover: #1a1a1a;

    --color-text-primary: #FFFFFF;
    --color-text-secondary: #a0a0a0;
    --color-text-muted: #666666;

    --color-accent: #00FFD5;
    --color-accent-hover: #00e6c0;
    --color-accent-glow: rgba(0, 255, 213, 0.3);

    --color-success: #00ff88;
    --color-warning: #ffbb00;
    --color-error: #ff4757;
    --color-info: #00a8ff;

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;

    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px var(--color-accent-glow);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms ease;

    /* Z-index */
    --z-dropdown: 100;
    --z-modal-backdrop: 200;
    --z-modal: 300;
    --z-toast: 400;
}

/* =============================================================================
   RESET & BASE
   ============================================================================= */

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-md);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* =============================================================================
   LAYOUT
   ============================================================================= */

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.container-sm {
    max-width: 480px;
}

.container-md {
    max-width: 768px;
}

.container-lg {
    max-width: 1024px;
}

/* Flex utilities */
.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.flex-wrap {
    flex-wrap: wrap;
}

.items-center {
    align-items: center;
}

.items-start {
    align-items: flex-start;
}

.items-end {
    align-items: flex-end;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.justify-end {
    justify-content: flex-end;
}

.gap-xs {
    gap: var(--space-xs);
}

.gap-sm {
    gap: var(--space-sm);
}

.gap-md {
    gap: var(--space-md);
}

.gap-lg {
    gap: var(--space-lg);
}

.gap-xl {
    gap: var(--space-xl);
}

/* Grid */
.grid {
    display: grid;
    gap: var(--space-md);
}

.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 768px) {

    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: 1fr;
    }
}

/* =============================================================================
   TYPOGRAPHY
   ============================================================================= */

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

h1 {
    font-size: var(--font-size-3xl);
}

h2 {
    font-size: var(--font-size-2xl);
}

h3 {
    font-size: var(--font-size-xl);
}

h4 {
    font-size: var(--font-size-lg);
}

p {
    margin-bottom: var(--space-md);
    color: var(--color-text-secondary);
}

.text-accent {
    color: var(--color-accent);
}

.text-success {
    color: var(--color-success);
}

.text-warning {
    color: var(--color-warning);
}

.text-error {
    color: var(--color-error);
}

.text-muted {
    color: var(--color-text-muted);
}

.text-center {
    text-align: center;
}

.text-sm {
    font-size: var(--font-size-sm);
}

.text-xs {
    font-size: var(--font-size-xs);
}

/* =============================================================================
   COMPONENTS - CARDS
   ============================================================================= */

.card {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-normal);
}

.card:hover {
    border-color: rgba(0, 255, 213, 0.2);
}

.card-glass {
    background: rgba(22, 22, 22, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.card-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin: 0;
}

/* =============================================================================
   COMPONENTS - BUTTONS
   ============================================================================= */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-bg-primary);
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-accent-hover);
    box-shadow: var(--shadow-glow);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-accent);
}

.btn-danger {
    background: var(--color-error);
    color: white;
}

.btn-danger:hover:not(:disabled) {
    background: #ff6b7a;
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
    padding: var(--space-xs) var(--space-sm);
}

.btn-ghost:hover:not(:disabled) {
    color: var(--color-accent);
    background: rgba(0, 255, 213, 0.1);
}

.btn-sm {
    padding: var(--space-xs) var(--space-md);
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: var(--space-md) var(--space-xl);
    font-size: var(--font-size-lg);
}

.btn-block {
    width: 100%;
}

.btn-icon {
    width: 32px;
    height: 32px;
    padding: 0;
    border-radius: var(--radius-md);
    font-size: 16px;
}

.btn-icon.btn-sm {
    width: 32px;
    height: 32px;
    font-size: 16px;
}

/* =============================================================================
   COMPONENTS - FORMS
   ============================================================================= */

.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--space-sm);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-size-md);
    color: var(--color-text-primary);
    background: var(--color-bg-tertiary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    font-family: inherit;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.form-input::placeholder {
    color: var(--color-text-muted);
}

.form-input.error {
    border-color: var(--color-error);
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23666666' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-sm) center;
    background-size: 20px;
    padding-right: var(--space-xl);
}

.form-select option {
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
}

.form-checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--color-accent);
}

.form-help {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-top: var(--space-xs);
}

.form-error {
    font-size: var(--font-size-sm);
    color: var(--color-error);
    margin-top: var(--space-xs);
}

.input-group {
    display: flex;
    gap: var(--space-sm);
}

.input-group .form-input {
    flex: 1;
}

/* Password input with toggle */
.password-input-wrapper {
    position: relative;
}

.password-input-wrapper .form-input {
    padding-right: 48px;
}

.password-toggle {
    position: absolute;
    right: var(--space-sm);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: var(--space-xs);
}

.password-toggle:hover {
    color: var(--color-accent);
}

/* =============================================================================
   COMPONENTS - BADGES & STATUS
   ============================================================================= */

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-success {
    background: rgba(0, 255, 136, 0.15);
    color: var(--color-success);
}

.badge-warning {
    background: rgba(255, 187, 0, 0.15);
    color: var(--color-warning);
}

.badge-error {
    background: rgba(255, 71, 87, 0.15);
    color: var(--color-error);
}

.badge-info {
    background: rgba(0, 168, 255, 0.15);
    color: var(--color-info);
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

.status-dot.connected {
    background: var(--color-success);
    box-shadow: 0 0 8px var(--color-success);
    animation: pulse 2s infinite;
}

.status-dot.disconnected {
    background: var(--color-error);
}

.status-dot.connecting {
    background: var(--color-warning);
    animation: pulse 1s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

/* =============================================================================
   COMPONENTS - MODAL
   ============================================================================= */

.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
    z-index: var(--z-modal-backdrop);
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
}

.modal-backdrop.active {
    display: flex;
}

.modal {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    z-index: var(--z-modal);
    animation: modalIn 0.2s ease;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(-10px);
    }

    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.modal-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    font-size: 24px;
    padding: var(--space-xs);
    line-height: 1;
}

.modal-close:hover {
    color: var(--color-error);
}

.modal-body {
    padding: var(--space-lg);
}

.modal-footer {
    display: flex;
    gap: var(--space-sm);
    justify-content: flex-end;
    padding: var(--space-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* =============================================================================
   COMPONENTS - TOAST
   ============================================================================= */

.toast-container {
    position: fixed;
    top: var(--space-lg);
    right: var(--space-lg);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background: var(--color-bg-card);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-accent);
    box-shadow: var(--shadow-lg);
    animation: toastIn 0.3s ease;
    min-width: 300px;
    max-width: 400px;
}

.toast.success {
    border-color: var(--color-success);
}

.toast.error {
    border-color: var(--color-error);
}

.toast.warning {
    border-color: var(--color-warning);
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.toast-close {
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    margin-left: auto;
}

/* =============================================================================
   COMPONENTS - LOADER
   ============================================================================= */

.loader {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loader-sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

/* =============================================================================
   COMPONENTS - TABLES
   ============================================================================= */

.table-wrapper {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: var(--space-md);
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.table th {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table tr:hover {
    background: var(--color-bg-hover);
}

/* =============================================================================
   PAGE - LOGIN
   ============================================================================= */

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    background:
        radial-gradient(ellipse at top, rgba(0, 255, 213, 0.05) 0%, transparent 50%),
        var(--color-bg-primary);
}

.login-card {
    width: 100%;
    max-width: 420px;
    text-align: center;
}

.login-logo {
    width: 200px;
    height: auto;
    margin-bottom: var(--space-xl);
}

.login-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-sm);
}

.login-subtitle {
    color: var(--color-text-muted);
    margin-bottom: var(--space-xl);
}

/* =============================================================================
   PAGE - DASHBOARD
   ============================================================================= */

.dashboard {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.dashboard-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-xl);
    background: var(--color-bg-secondary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: sticky;
    top: 0;
    z-index: 10;
}

.dashboard-logo {
    height: 40px;
    width: auto;
}

.dashboard-nav {
    display: flex;
    gap: var(--space-sm);
}

.dashboard-nav a {
    color: var(--color-text-secondary);
    text-decoration: none;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.dashboard-nav a:hover,
.dashboard-nav a.active {
    color: var(--color-accent);
    background: rgba(0, 255, 213, 0.1);
}

.dashboard-user {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.dashboard-content {
    flex: 1;
    padding: var(--space-xl);
}

.dashboard-title {
    margin-bottom: var(--space-lg);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.stat-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.stat-value {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-accent);
    margin-bottom: var(--space-xs);
}

.stat-label {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* Instance Card */
.instance-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-md);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-normal);
}

.instance-card:hover {
    border-color: rgba(0, 255, 213, 0.2);
    transform: translateY(-2px);
}

.instance-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
}

.instance-id {
    font-family: monospace;
    font-size: var(--font-size-sm);
    color: var(--color-accent);
}

.instance-name {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin: var(--space-xs) 0;
}

.instance-info {
    display: flex;
    gap: var(--space-xl);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    margin-top: var(--space-md);
}

.instance-actions {
    display: flex;
    gap: var(--space-sm);
}

/* =============================================================================
   PAGE - CLIENT DASHBOARD
   ============================================================================= */

.client-dashboard {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 80px);
    padding: var(--space-xl);
    text-align: center;
}

.qr-container {
    background: white;
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    margin: var(--space-xl) 0;
}

.qr-container img {
    max-width: 280px;
    height: auto;
}

.status-message {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-md);
}

.status-message.connected {
    color: var(--color-success);
}

.status-message.disconnected {
    color: var(--color-warning);
}

.connected-icon {
    font-size: 80px;
    margin-bottom: var(--space-lg);
}

/* =============================================================================
   UTILITIES
   ============================================================================= */

.hidden {
    display: none !important;
}

.mt-sm {
    margin-top: var(--space-sm);
}

.mt-md {
    margin-top: var(--space-md);
}

.mt-lg {
    margin-top: var(--space-lg);
}

.mt-xl {
    margin-top: var(--space-xl);
}

.mb-sm {
    margin-bottom: var(--space-sm);
}

.mb-md {
    margin-bottom: var(--space-md);
}

.mb-lg {
    margin-bottom: var(--space-lg);
}

.mb-xl {
    margin-bottom: var(--space-xl);
}

/* =============================================================================
   RESPONSIVE
   ============================================================================= */

@media (max-width: 768px) {
    .dashboard-header {
        flex-direction: column;
        gap: var(--space-md);
        padding: var(--space-md);
    }

    .dashboard-nav {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }

    .dashboard-content {
        padding: var(--space-md);
    }

    .instance-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
    }

    .instance-info {
        flex-direction: column;
        gap: var(--space-sm);
    }

    .modal {
        max-width: calc(100% - var(--space-lg));
        margin: var(--space-sm);
    }
}